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SRE Team Update

· 2 min read
John Lotoski

High level summary​

The SRE team continues work on Cardano environment improvements and general maintenance.

Some notable recent changes, updates or improvements include:

  • An Oakhost cloud Mac M4 machine was on-boarded into the mixed Hetzner and prem Darwin CI environment. An internal documentation guide was written for fast Oakhost onboarding if a need to scale Darwin resources further presents itself.

  • Adawallet received a feature upgrade to to handle native tokens in a number of subcommands for adawallet accounts. The cardano-airgap image was updated to include this capability.

  • A new IOHK signing authority key for email signing.authority@iohk.io with GPG key fingerprint ending in 0xCD0171BC90, was placed into production for package signing. The public key can be found here.

Repository Work -- Merged​

Adawallet​

  • Adds multiasset support to adawallet in select contexts such as send-tx, drain-tx, bulk-drain-tx, migrate-wallet, import-utxos, export-utxos. When the multiasset option is used native tokens are aggregated into a single UTXO with the minimum amount of lovelace required and lovelace only UTXOs are handled separately. A future improvement would be to handle large native tokens collections which may hit transaction size limits. adawallet-pr-24

Cardano-airgap​

Devx-ci​

  • Adds oak-m4-1 machine to the build cluster with associated monitoring, secrets, hydra ssh and build machine defn. Updates darwin.sh with a -b, --bindir optional arg to allow an easier darwin bootstrapping deployment. Bumps opentofu grafana provider to 4.5.3, makes a common Hetzner linux module, smaller Hetzner linux variant specific modules and refactors the existing Hetzner linux machines under those. Moves hetzner-m1.nix to darwin-state-version.nix module used by both Hetzner and Oakhost darwin machines. Adds a few clarification comments to the distributed builds nixosModule. devx-ci-pr-133

Ops-lib​

  • Bumps devShell and machines nix to 2.29.1, bumps deployed machines to nixpkgs 25.05 with a small patch for nixops to continue operating, bumps iohk-nix to current head and niv to latest sources.nix. Cleans up the ssh key overlay and removes sentry relevant package, modules and scripts as usage is deprecated. Makes misc required nixos-25.05 nixpkgs module updates. ops-lib-pr-136

Repository Work In Progress -- PRs and Branches​